1) Constellations were mainly used in ancient times for: a) Predicting rainfall b) Navigation and finding directions c) Measuring time d) Studying animals 2) The Pole Star appears almost stationary because: a) It is the brightest star b) It is closest to Earth c) It lies nearly above the Earth’s rotational axis d) It has no motion 3) The Big Dipper belongs to which constellation? a) Orion b) Ursa Minor c) Taurus d) Ursa Major 4) Light pollution mainly affects: a) Seasons b) Rainfall c) Visibility of stars d) Ocean tides 5) The star Sirius is located in which constellation? a) Orion b) Canis Major c) Taurus d) Ursa Minor 6) The Sun appears bigger than other stars because: a) It is the hottest star b) It is the biggest star c) It is closest to Earth d) It does not twinkle 7) One astronomical unit (au) is the distance between: a) Earth and Moon b) Sun and nearest star c) Sun and Earth d) Earth and Mars 8) Which of the following is an inner planet? a) Jupiter b) Saturn c) Uranus d) Venus 9) Earth appears blue from space because: a) It has oxygen b) Most of its surface is water c) It reflects blue sunlight d) It rotates quickly 10) Which planet is called the Red Planet? a) Mars b) Venus c) Mercury d) Neptune 11) Which planet is hotter than Mercury despite being farther from the Sun? a) Earth b) Venus c) Mars d) Saturn 12) Pluto is now classified as a: a) Gas giant b) Inner planet c) Dwarf planet d) Satellite 13) Stars twinkle, but planets do not because: a) Planets have no light b) Planets are hotter c) Planets are closer and appear as discs d) Stars are colder 14) The Moon takes about how many days to revolve around Earth? a) 7 days b) 15 days c) 27 days d) 365 days 15) Craters on the Moon are mainly formed due to: a) Volcanic eruptions b) Floods c) Meteor impacts d) Earthquakes 16) The asteroid belt lies between the orbits of: a) Earth and Mars b) Mars and Jupiter c) Jupiter and Saturn d) Venus and Earth 17) A comet develops a tail when: a) It moves away from Earth b) It rotates rapidly c) It comes close to the Sun d) It collides with a planet 18) The Milky Way Galaxy appears as a faint band of light because it contains: a) Millions to billions of stars b) Only planets c) Only comets d) Only asteroids 19) Our Solar System is a part of: a) The Orion Nebula b) The Milky Way Galaxy c) The Andromeda Galaxy d) A comet tail 20) Which object is NOT part of our Solar System? a) Mars b) Sirius c) Asteroids d) Comets

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